I've done the solo Orlandu thing many times, even against tough story battles. But honestly, I find it more fun to just bench T.G. Cid and try to beat the game without his awesomeness. It's cooler to utilize job classes that seem weak in comparison to Orlandu and form a strategic plan of attack for each fight. Like, having a Time Mage to haste your guys and slow the bad guys, and maybe Don't Move them.